US9456793B2 - Patient support for an odontological x-ray apparatus - Google Patents

Patient support for an odontological x-ray apparatus Download PDF

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Publication number
US9456793B2
US9456793B2 US13/580,450 US201113580450A US9456793B2 US 9456793 B2 US9456793 B2 US 9456793B2 US 201113580450 A US201113580450 A US 201113580450A US 9456793 B2 US9456793 B2 US 9456793B2
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band structure
patient support
patient
ray
holes
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US20120321051A1 (en
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Mikko Jarva
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Planmeca Oy
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Planmeca Oy
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
    • A61B6/51—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for dentistry
    • A61B6/14—
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/04—Positioning of patients; Tiltable beds or the like

Definitions

  • the invention relates to a patient support for an odontological x-ray apparatus according to the preamble of claim 1 .
  • the history of medical x-ray imaging originates approximately to the time of inventing x-radiation.
  • the advancement of digital imaging especially in the 1990s has brought digital x-ray imaging apparatuses also to the dental field.
  • the latest step of development seen in the dental field has been the generalisation of the cone beam computed tomography apparatuses designed for three-dimensional imaging of teeth and other bones of the cranial area.
  • the computed tomography enables imaging the cranial bones and teeth as well as soft tissues.
  • the field of odontology commonly employs x-ray apparatuses where the patient sits or stands positioned in a patient support means during the imaging.
  • a patient support means Commonly found structures in such support means include e.g. a jaw support, a bite support, support bars positioned on the patient's temples which mainly provide point-like support sideways, and a forehead support.
  • prior-art patient support arrangements the application publications US 2006/0227938, US 2007/0183567 and DE 3609260 can be mentioned.
  • the imaging event typically lasts of the order of 10-20 seconds.
  • a large-size C-arm turning around the head in front of the patient's face can easily frighten the patient and, also otherwise due to the duration of the imaging event, the patient's head may tend to move from its place or turn during the exposure.
  • the object of the invention is to provide a patient support for an odontological x-ray apparatus which can conform without special arrangements to be the support for a head of more than one specific size and which is implemented such that the patient support is not visible or it is easily removable e.g. from computed tomography images of the cranial area, in which also the soft tissue is wished to be seen.
  • the characteristics of the invention are described in the accompanying patent claims.
  • the invention with its preferable embodiments not only provides support to make it easier for the patient to keep his/her head stationary during an exposure but it even prevents moving the head forward and/or backward. Furthermore, the support hinders turning and sideways motions of the head during exposure and it further offers quite a good support even without simultaneously employing some prior-art jaw and/or bite support.
  • FIG. 1 shows a typical odontological x-ray imaging apparatus its basic structure including a base construction, an arm part supporting imaging means and a patient support station.
  • FIG. 2 shows an embodiment of a patient support according to the invention.
  • FIG. 1 shows an x-ray imaging apparatus ( 10 ) including a vertical base construction ( 11 ) from which horizontally extend a structure ( 12 ) supporting patient support means ( 17 ) and an arm part ( 13 ) which supports a structure supporting the imaging means, an arm part ( 14 ).
  • the arm part supporting the imaging means ( 14 ) is arranged rotatable, and also its location with respect to the structure supporting it ( 13 ) and/or the patient support station ( 18 ) may be arranged changeable.
  • the apparatus includes a control means, of which FIG. 1 shows a control panel ( 16 ) located into connection with the arm ( 12 ) supporting the patient support means.
  • the apparatus ( 10 ) can be arranged connected to a computer ( 30 ) via a cable and the computer can be arranged with a means for processing image information produced by the apparatus and a display ( 31 ) on which images can be shown.
  • FIG. 2 shows a patient support ( 17 ) according to the invention.
  • the patient support ( 17 ) comprises a band structure ( 21 ) conforming to the shape of the patient's head.
  • the band structure ( 21 ) is supported through two vertical supports ( 22 ) to the structure ( 12 ) supporting the patient support.
  • the patient support means ( 17 ) is also arranged with a jaw support ( 23 ) which can be detachably attached to the structure ( 12 ) supporting the patient support ( 17 ).
  • the vertical supports ( 22 ) are substantially straight bars and, in the areas of the band structure ( 21 ) the side wall of which gets positioned against the temples, holes ( 23 ) are arranged for the vertical supports ( 22 ) closely corresponding to the diameter of the vertical supports ( 22 ).
  • the shape of the vertical supports ( 22 ) can be straight or some other, such as curved, and their number can also be arranged to be some other than two.
  • the holes ( 23 ) are preferably trough-holes or at least so deep that a vertical degree of freedom of motion is provided to adjust the height position of the band structure ( 21 ).
  • One or more holes ( 23 ) can also be implemented which are open in the direction of the edge of the band structure ( 21 ) such that the vertical support ( 22 ) can be placed in the hole ( 23 ) besides from the direction of the central axis of the hole ( 23 ) also from the side of the band structure ( 21 ).
  • the band structure ( 21 ) may be arranged with several holes ( 23 ) for the vertical supports ( 22 ) at different locations. It is also possible to integrate or arrange attachable to the band structure ( 21 ) a strap which can be set to go round the patient's skull from the opposite side of the skull to the section which the band structure ( 21 ) supports (and which strap is thus not shown in FIG.
  • the attachment of such a strap to the band structure ( 21 ) can also utilise the holes ( 23 ) of the band structure ( 21 ) primarily arranged for the vertical supports ( 22 ).
  • the material and thickness of the band structure ( 21 ) are chosen such that it can, as soft, elastic and/or flexible, rest on a wide area on the surface of heads of different sizes and shapes.
  • the support properties of the elastic band structure ( 21 ) can also be affected by arranging holes or cuts of desired sizes at desired locations thereof. When the pressing force of the band can be adjusted, it enhances the possibility to use the band also without the jaw support ( 24 ) shown in FIG. 2 , when required.
  • a Hounsfield unit (10 is a variable representing density of the object with respect to attenuation of x-radiation. According to the definition, its value for air is ⁇ 1000 and for water zero.
  • the band structure ( 21 ) of the patient support ( 17 ) can be implemented according to the invention such that its density with respect to the attenuation of x-radiation is substantially lower than that of cranial tissues. With realistic material thicknesses of the band structure ( 21 ), this means e.g. a material the Hounsfield unit of which is of the order of at least 100 units lower than the HU of the cranial soft tissues, preferably at least 300 units lower.
  • the HU of the cranial soft tissues is typically of the order of zero+/ ⁇ 100 units.
  • suitable materials are cellular plastics and other porous materials and/or ones containing air bubbles.
  • the band structure ( 21 ) thus comprises according to the invention a material layer or it consists of a material the Hounsfield unit of which is of the order of at least 100 units lower than the HU of the cranial soft tissues, preferably at least 300 units lower. It is possible to arrange to the band structure ( 21 ) various holes both for the above-mentioned adjustment purpose and for decreasing radiation absorption of the construction.
  • the band structure ( 21 ) can also be implemented e.g. as a suitably shaped air cushion or as one to be filled into a suitable shape.
  • the vertical supports ( 22 ) included in the patient support ( 17 ) are manufactured of a material absorbing only a little x-radiation, such as carbon fibre.
  • the structure shown in FIG. 2 for attaching the band structure ( 21 ) to the patient support structure ( 17 ) also enables the use of the band structure ( 21 ) the other way around, for supporting the neck.
  • Such support for a patient may be applied e.g. when, in addition to the x-ray imaging means, to the x-ray apparatus is arranged a means for photographing the patient's face. Then, it is possible e.g. to implement facial photographing in the same set of coordinates and even in connection with the same imaging event as the x-ray imaging such that no forehead nor jaw support is visible in the photograph or photographs.
  • the embodiment of the invention shown in FIG. 2 also enables e.g. simultaneous use of two band structures ( 21 ) such that the first is used as the support on the forehead side and the other on the neck side.
  • the band structure ( 21 ) can also be implemented as a structure extending totally around the skull.
  • the curved shape of the band structure ( 21 ) is implemented according to one preferable embodiment of the invention such that thickness of the material layer of the band structure ( 21 ) is not constant but it includes one or more thinner sections. Thus, when adjusting the shape of the band structure ( 21 ) its curvature changes primarily in these thinner sections.
  • the material of the band structure ( 21 ) is elastic, its manufacture can be implemented from the viewpoint of economical manufacturing technique and also such that the band structure ( 21 ) is not readily curved but it bends to its curved shape when positioning the band structure ( 21 ) to the patient support structure ( 17 ).
  • One preferable way to implement such a band structure ( 21 ) is to arrange the sections of the band structure ( 21 ) positioned in the area between the forehead and the temples thinner than the ends of the band structure ( 21 ) and/or the point of the band structure ( 21 ) getting positioned in the middle of the forehead, whereby the band structure ( 21 ) bends mostly at those thinner sections.
  • the ends of the band structure ( 21 ) extending to the temples can be arranged thicker than its middle area to better enable implementation of several attaching holes for the support bars ( 22 ) and/or other adjustment holes ( 23 ) in the structure.
  • the band structure ( 21 ), especially its surface getting positioned against the patient's skin, can be covered or coated with a thin material layer suitable for the purpose.
  • the patient support ( 17 ) according to the invention can be considered to be arranged either as a fixed part of the imaging apparatus according to FIG. 2 or to be positioned into functional connection with the patient support station ( 18 ) of the imaging apparatus.
  • the band structure ( 21 ) does not necessarily have to be precisely like the one shown in FIG. 2 but it is advantageous and substantial to arrange it to support on the patient's head over an area substantially larger than the area of the temples.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • Radiology & Medical Imaging (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
US13/580,450 2010-02-23 2011-02-23 Patient support for an odontological x-ray apparatus Active 2031-07-30 US9456793B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20100078A FI126561B (fi) 2010-02-23 2010-02-23 Hammaslääketieteellisen röntgenlaitteiston potilastuki
FI20100078 2010-02-23
PCT/FI2011/050164 WO2011104439A1 (en) 2010-02-23 2011-02-23 Patient support for an odontological x-ray apparatus

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US20120321051A1 US20120321051A1 (en) 2012-12-20
US9456793B2 true US9456793B2 (en) 2016-10-04

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US (1) US9456793B2 (fi)
EP (1) EP2547260A4 (fi)
JP (1) JP6118559B2 (fi)
KR (1) KR20130028072A (fi)
CN (1) CN102869307B (fi)
FI (1) FI126561B (fi)
WO (1) WO2011104439A1 (fi)

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FI124596B (fi) * 2012-11-23 2014-10-31 Planmed Oy Lääketieteellinen tietokonetomografiakuvauslaitteisto
CN103099631B (zh) * 2013-02-22 2015-02-25 合肥美亚光电技术股份有限公司 一种立式x光摄影设备
KR101560478B1 (ko) 2014-02-28 2015-10-14 오스템임플란트 주식회사 수진자 정렬 가이드
KR101813472B1 (ko) * 2014-04-17 2017-12-29 쎄플라 쏘씨에타 쿠퍼라티바 구강외 치과 방사선영상을 획득하기 위한 두개 고정기
KR101838349B1 (ko) * 2014-04-17 2018-03-13 쎄플라 쏘씨에타 쿠퍼라티바 구강외 치과 방사선영상을 획득하기 위한 두개 고정기
KR101796350B1 (ko) * 2014-04-17 2017-11-09 쎄플라 쏘씨에타 쿠퍼라티바 구강외 치과 방사선영상을 획득하기 위한 두개 고정기
KR101659177B1 (ko) * 2014-12-15 2016-09-23 오스템임플란트 주식회사 치과용 두부 정렬장치
CN106618495A (zh) * 2016-12-06 2017-05-10 郭福生 一种脸托及使用该脸托的舌面仪
FI20166026L (fi) * 2016-12-23 2018-06-24 Planmeca Oy Jäljityskappaleet leuan kovakudoksen liikkeiden jäljittämiseksi
FI127695B (fi) * 2017-03-17 2018-12-14 Planmeca Oy Röntgenkuvauslaite ja potilastukijärjestely
FI127573B (fi) * 2017-03-17 2018-09-14 Planmeca Oy Röntgenkuvauslaite ja potilastuen turvamekanismi
RU174690U1 (ru) * 2017-07-10 2017-10-26 Федеральное государственное бюджетное образовательное учреждение высшего образования "Нижегородская государственная медицинская академия" Министерства здравоохранения Российской Федерации (ФГБОУ ВО НижГМА Минздрава России) Опора для подбородка при конусно-лучевой томографии челюстно-лицевой области
KR102068814B1 (ko) * 2017-09-07 2020-01-21 박영현 치과용 서포트 블록 및 이를 포함하는 영상 촬영 장치
RU185842U1 (ru) * 2018-03-30 2018-12-19 федеральное государственное бюджетное образовательное учреждение высшего образования "Приволжский исследовательский медицинский университет" Министерства здравоохранения Российской Федерации Опора для подбородка при проведении конусно-лучевой компьютерной томографии беззубых челюстей
WO2020106402A1 (en) * 2018-11-19 2020-05-28 Dedicated2Imaging, Llc. Patient support mechanism for a portable medical scanner

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US3358141A (en) * 1965-04-02 1967-12-12 Bix Board Company Immobilizer for X-ray analysis having pressure functioning fastening means
US3861666A (en) * 1972-07-13 1975-01-21 Tokyo Shibaura Electric Co Examinee-fastening device for use with an x-ray photographing apparatus
US3933154A (en) 1974-01-15 1976-01-20 Cabansag Edwin M Immobilizer device
US4030719A (en) * 1976-08-30 1977-06-21 Contour Fabricators, Inc. Child immobilizing device for X-rays
US4400820A (en) 1982-09-30 1983-08-23 General Electric Company Axial tomography head holder
JPS59100403A (ja) 1982-11-30 1984-06-09 Furukawa Electric Co Ltd:The 光複合架空電線の製造方法
DE3609260A1 (de) 1986-03-19 1987-09-24 Siemens Ag Zahnaerztliches roentgendiagnostikgeraet zur erstellung von panorama-schichtaufnahmen vom kiefer eines patienten
DE3627510A1 (de) 1986-08-13 1988-02-18 Siemens Ag Kopfpositioniereinrichtung fuer ein zahnaerztliches roentgendiagnostikgeraet
JPH1033526A (ja) 1996-07-23 1998-02-10 Japan Vilene Co Ltd 医療用透視台及びこれに用いる固定シート
US7502441B2 (en) * 2000-03-06 2009-03-10 Biolucent, Llc Device for cushioning compression surfaces
US6526609B2 (en) * 2001-03-29 2003-03-04 William Beaumont Hospital X-ray transparent hospital bed compatible with open geometry portable CT scanners
WO2003010556A2 (en) 2001-07-25 2003-02-06 Dentsply International Inc. Real-time digital x-ray imaging apparatus
US6675741B2 (en) * 2002-01-23 2004-01-13 Thomas E. Remmler Animal restraint system
EP1491145A1 (en) 2002-04-04 2004-12-29 Hitachi Medical Corporation Tomograph
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WO2004082481A1 (ja) 2003-03-17 2004-09-30 Hitachi Medical Corporation Ｘ線ｃｔ装置
US7505555B2 (en) * 2004-11-02 2009-03-17 Biolucent, Llc Pads for mammography and methods for making and using them
US20060227938A1 (en) 2005-04-11 2006-10-12 Gendex Corporation Structural and patient positioning features of an x-ray system
KR20070067519A (ko) 2005-12-23 2007-06-28 주식회사바텍 파노라마 엑스선 촬영장치
WO2007078027A1 (en) 2006-01-02 2007-07-12 Vatech Co., Ltd Method for photographing using x-ray photographing apparatus
US20070183567A1 (en) 2006-02-01 2007-08-09 Gendex Corporation Dental x-ray apparatus and method of positioning a patient therein
US20090175409A1 (en) 2006-05-08 2009-07-09 Sirona Dental Systems Gmbh Dental x-ray apparatus comprising a patient-positioning system arranged on a support and provided with a forehead rest
US8590487B1 (en) * 2012-11-14 2013-11-26 Ut-Battelle, Llc Enclosure for small animals during awake animal imaging

Also Published As

Publication number Publication date
EP2547260A1 (en) 2013-01-23
US20120321051A1 (en) 2012-12-20
FI126561B (fi) 2017-02-15
FI20100078A (fi) 2011-08-24
JP2013520262A (ja) 2013-06-06
EP2547260A4 (en) 2014-06-25
WO2011104439A1 (en) 2011-09-01
FI20100078A0 (fi) 2010-02-23
KR20130028072A (ko) 2013-03-18
CN102869307A (zh) 2013-01-09
CN102869307B (zh) 2015-09-23
JP6118559B2 (ja) 2017-04-19

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